Signal Block Bell, South Eastern Railway
1862
1862
2000-100 BCE
1872-1880
1879
1865
1865-1866
1893-4
1934
1870-1881
1879
1876
1866
1867
1878
1865
1879
1863-7
1867-1868
1875
1875
1865
1877
1870
1866-1870
1878
1870-1875
1872
1864
1875
circa 1868
1879
1872 (original); 1909 (model)
1955; 1830
1875
1876
1872
1871
1878-1879
1870-1880
1870s
1861-1866
1870-1880
circa 1861
circa 1861
circa 1871
1869
1867
1867
1863-1865
circa 1880